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Eep-Roms(IC891, IC892 and IC1811) memorizes the data
adjusted at Service Mode, and should not be replaced except
for the case of defective product.
■
The Uneven Color Correction data is memorized in IC891
and IC892.
■
Lamp Illumination Time, Data No. 110 of Service Mode, is
memorized in IC1811 to indicate the span of Lamp Life.
When IC1811 is replaced, Lamp Illumination Time is reset at
the same time.
Lamp Illumination Time can not be set to the previous
value.
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CAUTION TO REPLACE ASS'Y MAIN.
(In the case Eep-Roms are not damaged.)
When Ass'y Main is replaced, Eep-Roms on new Ass'y Main
should be replaced with the those on previous Ass'y Main.
❏
LAMP ILLUMINATION TIME keep the value as before.
❏
"Uneven Color Correction" and "Other Electrical
Adjustments" are unnecessary.
■
CAUTION TO REPLACE IC891 and IC892.
(In the case IC891 and IC892 are damaged.)
When ICs are replaced with new one, CPU write in initial data
in IC891 and IC892. Initial data is not the same data as facto-
ry initial data. After replacing the IC891 and IC892, readjust
the "Uneven Color Correction."
■
CAUTION TO REPLACE IC1811.
(In the case IC1811 is damaged.)
When IC is replaced with new one, CPU write in initial data in
IC806. Initial data is not the same data as factory initial data.
After replacing the IC1811, readjust the "Electrical
Adjustments".
❏
LAMP ILLUMINATION TIME is reset to the initial
value.
■
CAUTION :
Do not replace Eep-Roms(
IC891/ 892/1811
)
unreasonably!
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Adjustments after Parts Replacement
Replaced
Parts
Integrator lens in
Adjustment
LCD panels
Polarized glass out
Integrator lens in
Integrator lens out/Prism PBS
Condenser lens
Relay lens
Polarized glass in
Optical parts (inside the optical unit)
Ass'y Power/Subpower
Ass'y Main (see note)
■
: Readjust necessary
●
: Check necessary
NOTE :
CAUTION TO REPLACE ASS'Y MAIN AND EEP-ROMS (IC891/ 892/1811).
Integrator lens out
Adjustment
Condenser lens
Adjustment
Rela
y lens Adjustment
Common-center
-Adjustment
White-balance-Adjustment
Correction-une
ven -color
Other Electrical
Adjustments
Focus Adjustment
P
olariz
ed glass in
Adjustment
+6/+17V DC
V
olta
g
e
Adjustment
Con
ver
g
ence
Adjustment
Prism PBS Adjustment
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ELECTRICAL ADJUSTMENTS
